african-american athletes, including althea gibson and arthur ashe. >> this created this interest in my grandfather and his ability, i mean, phenomenal physician, but somehow he managed to be a student of the tennis game and transfered that learning into a program that would for decades provide players and opportunities for african-americans to integrate the sport. >> watch the c-span cities tour saturday, beginning at 5:00 p.m. eastern. on book tv on c-span2, and sunday at 2:00 p.m. on american history tv on c-span3. working with our cable affiliates, as we explore america. >> today, first lady melania trump, visited the children's inn at the national institutes of health where she ex changed valentine's cards with the children. the facility, located just outside the nation's capital in bethesda, maryland, is a private nonprofit residence for children who are receiving medical treatment and are

engaged in pediatric research. mrs. trump: hello. how are you? pleased to meet you. how old are you? >> i'm 26. mrs. trump: you look good. do you feel good? >> i am doing ok. mrs. trump: you look great and strong. >> thank you very much. mrs. trump: you look very nice. [inaudible] how are you feeling? good? happy valentine's day. are you doing something special? yes? doing some projects? that's very nice.

>> they're make valentine's. mrs. trump: how old are you? hat did you bring me here? [inaudible] very nice. >> collect the valentine's everyone is making for you. mrs. trump: hello, again. nice to see you again. you grow faster than me. how did you grow up so fast? [inaudible] how are you? >> i'm good. mrs. trump: good. what are you doing? what's your name? [inaudible] where are you from? very nice. beautiful. [inaudible] how are you? >> good. mrs. trump: christina.

how old are you? >> 23. mrs. trump: are you feeling good? you look beautiful. >> thank you. mrs. trump: i love -- [inaudible] yes, of course. what will you do something today? something special? >> we made valentine's. mrs. trump: beautiful. [inaudible] are you making for your parents? yeah? thank you very much. hat's very nice. very nice. thank you so much. i brought you some presents too. [inaudible]

beautiful. what's your name? >> shea. mrs. trump: how old are you? >> 25. mrs. trump: how are you feeling? good? >> i feel amazing. mrs. trump: you look great. nice to see you. [inaudible] now the spring is coming you can go out. >> hopefully. mrs. trump: do you

like it? [inaudible] >> you need another blank one? do we have any blank cards? mrs. trump: i met her before. [inaudible] [chatter] mrs. trump has some valentines.

melania trump: this is a valentines gift for you. kid: thank you so much. thank you so much. trump: this is another one for you. happy valentines! [laughter] [chatter] >> so many! another one! >> you have to give that wanted her. that you have to give that one to her.

>> happy valentines! >> tell her go on, happy valentines! announcer: tonight on c-span, congressman adam schiff on the investigation of russian interference in the u.s. election. with mike pence, we speak about his recent trip to south korea. treasury secretary steven mnuchin testifies at the senate finance committee hearing. today, congressman adam schiff, the lead democrat on the house intelligence committee talks about the investigation into russian involvement in the 2016 elections. he was a guest at a breakfast meeting for reporters hosted by the christian science monitor. this is just over one hour.